Today I removed both leads to the generator, joined the terminals with a
short piece of wire, removed the fan belt to free the generator pulley,
touched a wire from power (A1) to the bridged terminal wire and the
generator motored properly in the correct direction (same as the engine
turns) That confirms to me that the generator is okay, charging, and
polarized correctly.
Next I'm going to remove all the leads from the regulator and with batteries
disconnected, see if there is any continuity (other than the black wires)
between any of the leads and earth. I'm wondering if something somewhere is
crossed and or contacting earth.
My hair is almost completely gray now!
Rich
----- Original Message -----
From: "John Harper" <AH@jharper.demon.co.uk>
To: <Josef.Eckert@t-systems.com>
Cc: <richchrysler@quickclic.net>; <Healeys@autox.team.net>
Sent: Monday, September 17, 2007 2:36 PM
Subject: Re: [Healeys] Voltage Regulator Problems
>
> Josef
>
> I believe that you might be slightly wrong with the detail but it has led
> me to an idea. There are only two brushes and I cannot see how these could
> be fitted in any other way. However I can see that if the field coil is
> replaced it would be fairly easy to solder the two leads to the 'F' post
> and the large tag to the body of the generator the wrong way around. As
> Rich says he has tried polarising many times and most likely the residual
> magnetism is now established BUT the wrong way round. Therefore the output
> at the 'D' terminal will be in the opposite polarity. Thus producing 12
> Volt in opposite polarity to the battery and putting 24 volt on the
> indicator lamp and burning it out.
>
> Rich - I this possible?
>
> Regards
>
>
>> when I had rebuild the
>>generator of my BN1 some years ago. I did the rebuild by my own and I
>>fitted
>>the four brushes 900 twisted, which caused the symtoms you describe. You
>>can
>>check this, when you run the generator as a motor. You need to take the
>>generator out of the car and connect the D an F terminals together and
>>connect
>>with a battery. The generator should run like a motor. But if you put the
>>brushes 900 wrong, then the pulley turns in the wrong direction, not like
>>it
>>was driven by the engine when installed. You can change the polarity and
>>it
>>still runs in the wrong direction. You get the right direction, when you
>>move
>>the brushes 900. So just move the brushes to brush holders 900 back or
>>forth.
> --
> John Harper
_______________________________________________
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
|